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How Common Is Pectus Excavatum

With one in 300 births, pectus excavatum is considered the most common chest wall anomally.

baby with common chest wall deformity pectus excavatum

How Often does Pectus Excavatum occur ?
Pectus Excavatum is the most common chest wall deformity, accounting for almost as 90% of all congenital chest wall malformations. Approximately it occurs once in 300 births, with male to female ratio 3 to 1. Although pectus deformities are considered to always be congenital, studies have shown that pectus excavatum, as well as other chest deformities, can appear later in development (around 10%). If this is the case, then the problem is associated with malformation issues of the muscular connective tissue (Marfan syndrome, Polan syndrome etc.)  
Other Conditions That Have The Sunken Chest Syndrome
There are other medical conditions that can often result in sunken chest by affecting the body structure one way or another. These are not to be mistaken for pectus excavatum, although they can be closely related and share some of the same dysfunctionalities and side effects. Here are brief explanations:

 

conditions with common side effect  indented chest